. Annals of surgery . Fig. I.—Boaris button.(Twice the actualsize.) Fig. 2.—Boaris button. (Twice theactual size; spring held down bythe stylet.) the ureter is cut across on the proximal side of this ligature. Thefield of operation is suitably protected from contamination, and thepossibility of approximating the ureter to the bladder is demon-strated. A button of a suitable calibre having been selected, theureteral end is invaginated upon the tube and secured in place by asilk ligature. The movable plate is depressed till it comes in contact

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectsurgery, bookyear1885